我想学习Android和已经跟随了如何使用谷歌地图API V.2现在我懂了工作的指示。 然而，关于如何配置的地图的初始状态的指示，发现了在developers.google.com,建议在XML文件中定义的命名空间，在这种情况下，地图。

该XML的$ C $低于C给出配有错误的意外的命名空间preFIX地图。试图定义的的xmlns：地图片段标记中作出了同样的错误，但用的xmlns。

我明明在这里缺少一些基本的XML知识，有人可以帮我吗？

 ＆LT; RelativeLayout的
    的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    的xmlns：工具=htt​​p://schemas.android.com/tool​​s
    的xmlns：地图=htt​​p://schemas.android.com/apk/res-auto＆LT;  - 定义 - ＆GT;
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent＆GT;

    ＆LT;片段
        机器人：ID =@ + ID /图
        机器人：layout_width =match_parent
        机器人：layout_height =match_parent
        类=com.google.android.gms.maps.SupportMapFragment
        图：cameraBearing =112.5/＆GT; ＆LT;！ - 问题 - ＆GT;

＆LT; / RelativeLayout的＆GT;
 

解决方案

您需要做两件事情：

第一： https://docs.google.com/document/pub?id=19nQzvKP-CVLd7_VrpwnHfl-AE9fjbJySowONZZtNHzw

添加到依赖谷歌播放服务到您的项目

 项目 - ＆GT;属性 - ＆GT; Android的 - ＆GT;图书馆，添加 - ＆GT;谷歌播放的，services_lib
 

第二个： https://developers.google.com/maps/documentation/android/intro

选择项目>属性，选择Java Build Path，并导航到库。 选择添加外部JAR，包括以下jar文件，然后单击确定：

 ＆LT; Android的SDK文件夹＆GT; /extras/android/compatibility/v4/android-support-v4.jar
 

现在我的项目显示了没有错误:) 问候，烫发

I'm trying to learn android, and having followed the instructions on how to use the Google Maps API V.2 I now got it working. However, the instructions on how to configure the initial state of the maps, found at developers.google.com, suggests a namespace defined in the xml-file, in this case "map".

The xml-code below gives med the error "Unexpected namespace prefix "map"". Trying to define the xmlns:map inside the fragment tag gave the same error but with "xmlns".

I'm obviously missing some fundamental xml-knowledge here, can someone help me out?

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"        
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:map="http://schemas.android.com/apk/res-auto"      <!-- Definition -->
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <fragment 
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.SupportMapFragment"
        map:cameraBearing="112.5"/>                            <!-- PROBLEM -->

</RelativeLayout>

you have to do two things:

first: https://docs.google.com/document/pub?id=19nQzvKP-CVLd7_VrpwnHfl-AE9fjbJySowONZZtNHzw

Add the dependency to Google Play Services into your project

Project -> Properties -> Android -> Library, Add -> google-play-services_lib

second: https://developers.google.com/maps/documentation/android/intro

Select Project > Properties, select Java Build Path, and navigate to Libraries. Select Add External Jars, include the following jar files, and click OK:

<android-sdk-folder>/extras/android/compatibility/v4/android-support-v4.jar

now my project shows no errors anymore :) regards, marcel